Parallel-detection electron energy-loss spectrometer
US4743756A · kind A · utility
21Cited by
2References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1987 |
| Grant date | May 10, 1988 |
| Priority date | — |
| Expiry date | Aug 10, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Quadrupole electron lenses 21, 22, 23 and 24 are disposed between an energy-dispersing device 15 and a parallel detector 50 in an electron energy-loss spectrometer. The power and polarity of the quadrupole lenses may be adjusted to simultaneously provide the desired energy dispersion of the spectrum, and a precise match between the width of the spectrum and the width of the parallel detector. Additional quadrupole lenses may be interposed between quadrupole lens 24 and the detector 50 to further increase the energy dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.